PROBABILITY

Cards each marked with one of the numbers 4, 5, 6....., ....20 are placed in a box and mixed thoroughly. One card is drawn at random from the box. What is the probability of getting an even number?

One card is drawn from a well shuffled duck of 52 playing cards. What is the probability of getting a non-face card?

A bag contains 5red, 8green and 7 white balls. One ball is drawn at random from the bag. What is the probability of getting a white ball or green ball?

A die is thrown once .What is the probability of getting a prime number?

Two coins are tossed simultaneously. Find the probability of getting at least one head.

From a well shuffled pack of cards, a card is drawn at random. Find the probability of getting a black queen.

A die is thrown once. What is the probability of getting a number greater than 4.

What is the probability that a number selected is at random from the numbers 3, 4, 5, ....., 9 is a multiple of 4

Tickets are numbered from 1 to 20 and mixed up, then a ticket is drawn at random. What is the probability that the ticket drawn is a multiple of 3 ?

A number is selected at random from the numbers 3, 5, 5, 7, 7, 7, 9, 9, 9, 9. What is the probability that the number selected is the average of the given numbers?

Two dies are thrown together. What is the probability of getting a doublet?

What is the probability that a nonleap year has 53 Mondays?

One card is drawn from a pack of 52 cards. What is the probability that the card drawn is either red or king?

A jar contains 24 marbles, some are green and remaining are blue. A marble is drawn at random from the jar, the probability that it is green is 2/3. Find the number of blue marbles in the jar